Portmanteau of Chimpanzee and Nigger. Chimpanzees are extremely violent, and very promiscuous, just like niggers. Niggers are also prone to violent outbursts, known as chimping out". Therefore a nigger in the middle of a chimp out may be described as a chimpanigger.

Chimpaniggers were on the news again last night. They stabbed a teenager in Brixton, shot someone in Streatham High Street and violently raped at least 30 human women.